The answer is vasoconstriction. This is the reaction that occurs when the blood vessels constrict and when the blood vessel constrict, this will likely cause the blood pressure of an individual to increase. The cause of vasoconstriction can be because of the chemicals that the body accumulates.<span />
A baby using a fork to eat
Answer:
The correct answer is: β1 adrenergic receptor activation. Increased in cAMP lead to increased amounts of Na influx (though if channels) and calcium influx of pacemaker cells. This increases the frequency of APs of the pacemaker and increases the rate of contraction.
Explanation:
cAMP generated in response to β1 adrenergic receptors,results in excitation contraction coupling by initiating PKA and causing phosphorylation of L type Ca2+ channels and ryanodine receptors. This increases the concentration of intracellular Ca2+ ions in atrial cells, ventricular cells and AV pacemaker cells. This increase in firing rate. As a result rate of contraction increases.
Spring tides have the largest difference between low and high tides. They only occur during Full and new moons or when the Sun , Moon, and Earth are in a straight line. Neap tides have the smallest difference between high and low tides and only occur during a 1st or 3rd quarter moon or when the Sun, Moon, and Earth are at a 90 degree angle.
